So Mad!!😡

Ok so this app and one other I have have been saying I’ll ovulate in the 28th this month, well I’ve been taking opk since the 16th and I actually started to feel that ovulation cramping just today and boom it says I’m at peak and ovulating way earlier than I usually do! I’m scared I’m going to miss this month because my husband is away until tomorrow. I’m so upset because I had it all planned out and now I think it’s ruined! How did I miss it if I was testing for over a week?!